Nios V Ethernet failed on Cyclone V GT development kit

Hi,

I did try with the Nios V design. The design for Arria 10 uses SGMII mode, I changed it to RGMII, but the problem still persist. I think there's some problem with the mSGDMA core using prefetcher core.

Do you guys have any reference design for the msgdma using only standard descriptor without the prefetcher core. I was able to construct standard descriptor without prefetcher core and sent raw UDP frame. But I couldn't make the receive part to work.